Podcast
Questions and Answers
What structures are found in the contents of the radial artery?
What structures are found in the contents of the radial artery?
- Ulna artery and bicipital aponeurosis
- Radial artery and pronator teres muscle
- Biceps tendon and superficial branch of radial nerve
- Median nerve and bifurcation of brachial artery (correct)
Which vein is commonly used for intravenous injections?
Which vein is commonly used for intravenous injections?
- Median cubital vein (correct)
- Radial artery vein
- Median nerve vein
- Brachial artery vein
What is the action of the triceps brachii muscle?
What is the action of the triceps brachii muscle?
- Adduction of the arm at the shoulder joint
- Abduction of the arm at the shoulder joint
- Flexion of the forearm at the elbow joint
- Extension of the forearm at the elbow joint (correct)
Where does the long head of the triceps brachii muscle originate from?
Where does the long head of the triceps brachii muscle originate from?
What structures form the boundaries of the posterior compartment of the arm?
What structures form the boundaries of the posterior compartment of the arm?
What is the function of bicipital aponeurosis during venipuncture?
What is the function of bicipital aponeurosis during venipuncture?
Which nerve is associated with the circumflex scapular artery?
Which nerve is associated with the circumflex scapular artery?
What is located between teres major superiorly, long head of triceps brachii medially, and humerus laterally?
What is located between teres major superiorly, long head of triceps brachii medially, and humerus laterally?
What is used to feel pulsations and take blood pressure?
What is used to feel pulsations and take blood pressure?
What action does the triceps brachii muscle perform?
What action does the triceps brachii muscle perform?
Study Notes
Radial Artery
- Contains blood, red blood cells, white blood cells, platelets, and plasma
Intravenous Injections
- The median cubital vein is commonly used for intravenous injections due to its superficial location and ease of access
Triceps Brachii Muscle
- Extends the forearm at the elbow joint
Long Head Origin of Triceps Brachii Muscle
- Originates from the infraglenoid tubercle of the scapula
Posterior Compartment of the Arm Boundaries
- Bounded by the humerus laterally, the intermuscular septa medially and laterally, and the deep fascia of the arm
Bicipital Aponeurosis
- Provides support to the median cubital vein, making it easier to access during venipuncture
Circumflex Scapular Artery
- The suprascapular nerve is associated with the circumflex scapular artery
Terres Major, Triceps Brachii, and Humerus
- The quadrangular space is located between teres major superiorly, long head of triceps brachii medially, and humerus laterally
Blood Pressure Measurement and Pulsation
- The radial artery is commonly used to feel pulsations and take blood pressure
Triceps Brachii Muscle Action
- The triceps brachii muscle extends the forearm at the elbow joint
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Description
Test your knowledge on the anatomy of the humerus bone and arm muscles. Identify muscles attached to the humerus bone from anterior and posterior views. Learn about areas prone to fractures in the humerus.
